New Card Suggestion Bug

Before the error happened, I wasโ€ฆ
Suggesting a new card for my AnkiHub Deck.

Error message (don't change this)
Anki 23.12.1 (1a1d4d54)  (ao)
Python 3.9.15 Qt 6.6.1 PyQt 6.6.1
Platform: Windows-10-10.0.22631

Traceback (most recent call last):

  File "C:\Users\Rhorn\AppData\Roaming\Anki2\addons21\1322529746\gui\suggestion_dialog.py", line 548, in accept
    self._callback(self.suggestion_meta())

  File "C:\Users\Rhorn\AppData\Roaming\Anki2\addons21\1322529746\gui\suggestion_dialog.py", line 112, in <lambda>
    callback=lambda suggestion_meta: _on_suggestion_dialog_for_single_suggestion_closed(

  File "C:\Users\Rhorn\AppData\Roaming\Anki2\addons21\1322529746\gui\suggestion_dialog.py", line 229, in _on_suggestion_dialog_for_single_suggestion_closed
    suggest_new_note(

  File "C:\Users\Rhorn\AppData\Roaming\Anki2\addons21\1322529746\main\suggestions.py", line 129, in suggest_new_note
    client.create_new_note_suggestion(

  File "C:\Users\Rhorn\AppData\Roaming\Anki2\addons21\1322529746\ankihub_client\ankihub_client.py", line 944, in create_new_note_suggestion
    raise AnkiHubHTTPError(response)

1322529746.ankihub_client.ankihub_client.AnkiHubHTTPError: AnkiHub request error: 500 Internal Server Error

Sentry link (for developers)

Can you go to AnkiHub > Help > Upload logs and post the filename shown?

ankihub_addon_logs_a96a7_1720609817.log

Does the card have a lot of tags or a field with a lot of contents? Can you export the card as apkg and upload it here?

No it doesnโ€™t. Only two tags. Thank you
Link to example note

The note has an image in the Extra field stored internally as a huge chunk of text, which is hitting a database limit (55 KB). You can use the Localize Media add-on to fix the issue.

UPDATE: it turned out this my diagnosis was wrong. Please see my reply here for the solution: